[Danny William Adair] | Now Nils and Oleg are giving me the creeps. There are several issues here. First, it is not obvious that including one GPL'ed product in a zope site and then distributing that site obliges you to distribute any further source code. Only if you (embrace and) extend that specific product would the GPL hit you. Second, even if it does, remember that a zope site almost always includes source anyway. I guess the exception would be if you have binary-only python files or linked pre-compiled c-code or something like that. But it would be very hard to claim that those parts were 'infected' by a product on your site being GPL'ed. Third, you are only obligated to distribute source to parties you have already distributed the binary version to. I can't really see a customer buying a zope site from you and not expecting 'source' anyway. -Magnus (I'm not a lawyer)